Why can't I run my code? (tfest function)
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I can run this code below in Matlab Online. But when I run this code in Matlab application, it resulted in error.
M2 = tfest(data_training,sys_init_T1);
Error using tfest
Not enough input arguments.
How can I fix this problem? I'm so confused
x = readtable('data_thermal_pulse.txt');
time = x.Var1;
T1 = x.Var2-x.Var2(1);
input = x.Var4;
Ts = 0.07;
data = iddata(T1,input,Ts);
data_training = data(1:round(0.5*size(data,1)),:);
data_testing = data((round(0.5*size(data,1)))+1:end-1,:);
sys_T1 = idtf(NaN,[1 NaN],'ioDelay',NaN);
M1 = tfest(data_training,sys_T1);
sys_init_T1 = idtf(NaN,[1 NaN],'ioDelay',NaN);
sys_init_T1.Structure.num.Value = 0.0040;
sys_init_T1.Structure.num.Minimum = 0.0001;
sys_init_T1.Structure.den.Value = [1 0.01];
sys_init_T1.Structure.den.Minimum = [1 0.001];
sys_init_T1.Structure.ioDelay.Value = 1.96;
sys_init_T1.Structure.ioDelay.Minimum = 0.01;
sys_init_T1.Structure.ioDelay.Maximum = 2.04;
M2 = tfest(data_training,sys_init_T1);
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Réponses (2)
Sulaymon Eshkabilov
le 18 Fév 2024
Here it is running ok:
x = readtable('data_thermal_pulse.txt');
time = x.Var1;
T1 = x.Var2-x.Var2(1);
input = x.Var4;
Ts = 0.07;
data = iddata(T1,input,Ts);
data_training = data(1:round(0.5*size(data,1)),:);
data_testing = data((round(0.5*size(data,1)))+1:end-1,:);
sys_T1 = idtf(NaN,[1 NaN],'ioDelay',NaN);
M1 = tfest(data_training,sys_T1)
sys_init_T1 = idtf(NaN,[1 NaN],'ioDelay',NaN);
sys_init_T1.Structure.num.Value = 0.0040;
sys_init_T1.Structure.num.Minimum = 0.0001;
sys_init_T1.Structure.den.Value = [1 0.01];
sys_init_T1.Structure.den.Minimum = [1 0.001];
sys_init_T1.Structure.ioDelay.Value = 1.96;
sys_init_T1.Structure.ioDelay.Minimum = 0.01;
sys_init_T1.Structure.ioDelay.Maximum = 2.04;
M2 = tfest(data_training,sys_init_T1)
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升 毕
le 18 Fév 2024
I also run this code without error on matlab2021b and 2018b. M1 and M2 is the same as @Sulaymon Eshkabilov
Star Strider
le 18 Fév 2024
Run this from a script or your Command Window:
which tfest -all
It should give you this identical result. If it shows anything else, that is likely the problem. The solution is to re-name any other scripts, variables, or functions that are not in the System Identification Toolbox to something that makes sense in the context you are using them in, and do not overshadow any MATLAB functions.
.
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